Good games, Saro! Honestly, your Shulk's pretty decent. I recommend checking out the Shulk boards on Smashboards if you need more help/info on him. Everyone's pretty nice and active there, so don't be afraid to ask stuff!
- Remember you cancel Monado Arts by pressing B 3 times if you need to save yourself and switch to Jump. Monado Shield isn't too good; I usually use it only for when I really want to survive or for MALLC (and then I immediately turn it off).
- Speaking of MALLC, have you looked into it? It greatly increases Shulk's offensive pressure imo.
- Once again, I cannot stress enough how important it is to space Shulk's aerials well. Try going for retreating FAirs or BAirs some more.
- Using Air Slash as an attack isn't a bad idea, but it's super risky to do. It's best used out of shield. I believe Air Slash has 10 frames of start up?
- Don't be too predictable with Vision. You're just asking to get grabbed.
There's probably more stuff I'm forgetting, but uh yeah. Practice makes perfect, man! Don't forget to rewatch any replays you saved (think I only saved like two).